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Finding the Fourth Proportional to 612,713.70, 919,099.35 and 192,003.30

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Solution

The fourth proportional to 612,713.70, 919,099.35 and 192,003.30 is: 288,013.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,713.70 : 919,099.35 = 192,003.30 : x
  2. Step 2: Convert to fraction form
    612,713.70/919,099.35 = 192,003.30/x
  3. Step 3: Cross multiply
    612,713.70x = 919,099.35 × 192,003.30
  4. Step 4: Simplify right side
    612,713.70x = 176,470,108,227.86
  5. Step 5: Solve for x
    x = 176,470,108,227.86/612,713.70
  6. Step 6: Final answer
    x = 288,013.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.